she defeats moderate republican senator scott brown. this was always going to be a tough race for brown because of the way voters break down in massachusetts. 52% of voters in massachusetts say they're independent. 36% say they're democrats. and just 12%. a small number, say they're republicans. because of that small figure of g.o.p. voters in massachusetts, republicans told us that scott brown had to win 20% of the vote tonight in order to win. but look at our exit poll. brown only got 11% of democratic voters in massachusetts, elizabeth warren got 89%. so the harvard law professor and former member of the obama administration has won the senate seat in massachusetts. scott, she heads to washington as the first female senator from massachusetts. she get there is in january. >> pelley: byron, thanks very much. a big pickup for the democrats, bob. >> yes, it was. and this is massachusetts reverting to form. i mean, this was ted kennedy's seat when scott brown got elected. he said no, it's th people's se. and that's right but this is a se